MinT - Best Known (39, 39+41, s)-Nets in Base 4

Best Known (39, 39+41, s)-Nets in Base 4

(39, 39+41, 56)-Net over F₄ — Constructive and digital

Digital (39, 80, 56)-net over F₄, using

t-expansion [i] based on digital (33, 80, 56)-net over F₄, using
- net from sequence [i] based on digital (33, 55)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 33 and N(F) ≥ 56, using
    - F₅ from the tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(39, 39+41, 66)-Net over F₄ — Digital

Digital (39, 80, 66)-net over F₄, using

t-expansion [i] based on digital (37, 80, 66)-net over F₄, using
- net from sequence [i] based on digital (37, 65)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 37 and N(F) ≥ 66, using
    - Drinfeld modules of rank 1 [i]

(39, 39+41, 645)-Net in Base 4 — Upper bound on s

There is no (39, 80, 646)-net in base 4, because

1 times m-reduction [i] would yield (39, 79, 646)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 374687 024165 897186 060767 752678 343391 689844 209816 > 4⁷⁹ [i]